Emails Revamp (#1201)

* refactor: emails (WIP)

* wip

* wip

* refactor: calendarClient

* chore: remove comment

* feat: new templates

* feat: more templates (wip)

* feat: email templates wip

* feat: email templates wip

* feat: prepare for testing

* For testing stripe integration

* Uses imported BASE_URL

* Fixes types

* use BASE_URL

Co-authored-by: Omar López <zomars@me.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

test/lib/emails/invitation.test.ts

@@ -1,27 +0,0 @@
-import { expect, it } from "@jest/globals";
-
-import { html, text, Invitation } from "@lib/emails/invitation";
-
-import { getTranslation } from "@server/lib/i18n";
-
-it("email text rendering should strip tags and add new lines", () => {
-  const result = text("<p>hello world</p><br /><div>welcome to the brave <span>new</span> world");
-  expect(result).toEqual("hello world\nwelcome to the brave new world");
-});
-
-it("email html should render invite email", async () => {
-  const t = await getTranslation("en", "common");
-  const invitation = {
-    language: t,
-    from: "Huxley",
-    toEmail: "hello@example.com",
-    teamName: "Calendar Lovers",
-    token: "invite-token",
-  } as Invitation;
-  const result = html(invitation);
-  expect(result).toContain(
-    `<br />${t("user_invited_you", { user: invitation.from, teamName: invitation.teamName })}<br />`
-  );
-  expect(result).toContain("/auth/signup?token=invite-token&");
-  expect(result).toContain(`${t("request_another_invitation_email", { toEmail: invitation.toEmail })}`);
-});